Mont. Code Ann. § 70-23-607
(1) Whenever an association of unit owners acting through its manager furnishes to a unit any services, labor, or material lawfully chargeable as common expenses, the association of unit owners, upon complying with subsection (2) of this section, shall have a lien upon the individual unit and the undivided interest in the common elements appertaining to such unit for the reasonable value of such common expenses, and the lien shall be prior to all other liens or encumbrances upon the unit except:
(2) An association of unit owners claiming the benefits of subsection (1) of this section shall record in the county in which the unit or some part thereof is located a claim containing:
History: En. Sec. 26, Ch. 120, L. 1965; R.C.M. 1947, 67-2326; amd. Sec. 15, Ch. 202, L. 1987.